Device for pulling pump-pipes.



PHILIP C. EMANUEL, OF IBENNET'ISVILLE, SOUTH CAROLINA.

DEVICE FOR PULLING PUMP-PIPES.

Specification of Letters Patent.

Patented Apr. 4, 1911.

Application filed May 31, 1910. Serial No. 564,207.

To all whom it may concern:

Be it known that I, PHILIP C. EMANUEL, a citizen of the United States,residing at Bennettsville, in the county of Marlboro and State of SouthCarolina, have invented a new and useful Device for Pulling Pump- Pipes,of which the following is a specification.

The invention relates to a device for pulling pump pipes.

The object of the present invention is to provide a simple, inexpensiveand. eflicient device of great strength and durability, designed forpulling out of the ground driven pump pipes when it becomes necessary toremove the same for renewing the point or screen, or for any otherpurpose, and adapted to be operated by hand at the surface of theground, and capable of enabling a pump pipe to be easily removed insections without liability of crushing or otherwise damaging the pumppipe.

With these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawing, and pointed out in the claimshereto appended; it being understood that va-- rious changes in theform, proportion, size and minor details of construction, within thescope of the claims, may be resorted to without departing from thespirit or sacrificing any of the advantages of the invenvtion.

In the drawing :Figure 1 is a vertical sectional view, partly inelevation, of a pump pipe pulling device, constructed in accordance withthis invention. Fig. 2 is a transverse sectional view of the upperportion of the device. Fig. 3 is a horizontal sectional view of thesame. Fig. 4 is a reverse plan view ofa portion of the operating lever.Fig. 5 is a detail sectional view, illustrating the manner of mountingthe dogs or catches. Fig. 6 is a detail perspective view of an extensionsection of the tubular shield.

Like numerals of reference designate corresponding parts in all thefigures of the drawing.

In the embodiment of the invention illustrated in the accompanyingdrawing, 1 designates a tubular shield, surrounding the upper portion ofthe pump pipe 2, and equipped at opposite sides with laterallyprojecting lugs 3, arranged in pairs and adapted to be engaged by dogsor catches 41, carried by a cross head 5, which is operated by a lever6. The tubular shield, which surrounds the pump pipe, is adapted toprevent the same from being crushed or otherwise damaged in. pulling thesame from the ground, and it is provided at its upper end with exteriorscrew threads 7, engaging interior screw threads 8 of a cap 9. The cap9, which is fitted on the upper end of the pump pipe, is provided with asocket 10 to receive the upper end of the tubular shield, and it is alsoprovided with a threaded upper counter-bore 11 to engage the threadedupper end 12 of the top section of the pump pipe. Instead, however, ofproviding a threaded connection between the upper end of the tubularshield and the cap, these parts may be detachably connected in any otherpreferred manner. The cap is readily uncoupled from the tubular shieldand disconnected from the pump pipe to enable the parts to be removedafter a sec.- tion of the pump pipe has been pulled out of the ground,as hereinafter more fully explained. The pump pipe is pulled from theground in sections, and as soon as one section thereof is clear of theground, it is uncoupled and the device is connected with the nextsection of the pump pipe.

The lugs 3 are beveled at their outer edges and are shouldered at theirlower edges, and the opposite catches 4Z-engage the lower edges of thelugs when the lifting arm or portion of the lever is raised, and areadapted to slide over the lugs when the lifting portion of the lever islowered to engage the catches with another set of lugs.

The cross head 5 is composed of a pair of metallic bars 13, spaced apartby metallic blocks or pieces 14:, interposed between the end portions ofthe bars 13, which are provided with oppositely bowed intermediateportions 15, forming an opening to receive the shield. The end portionsof the bars 13 are preferably straight and are bolted, or otherwisesecured to the blocks or pieces 14. The bowed portions 15 of the bars ofthe cross head receive the tubular shield and are adapted to slideupward and downward thereon, the cross head being held against rotarymovement by means of a screw 16, mounted in a threaded opening of one ofthe bowed portions 15 of the cross head and engaging a verticallongitudinal groove 17, formed in the exterior of the tubular shield 1.The screw is also adapted to clamp the cross head to the shield, when itis desired to support the same and the pipe in an elevated position.

The dogs or catches 4 have rounded lower ends and are inclined upwardlyand inwardly, being maintained in engagement with the tubular shield bymeans of springs 18; The blocks or pieces are provided with curved seats19 to support the lower rounded ends of the dogs or catches, which aresecured to the cross head by bolts 20, piercing the side bars 18. Thecurved seats sustain the dogs or catches and relieve the bolts ofstrain. The springs 18, which are curved, are secured by screws, orother suitable fastening means to the upper faces or edges of the blocksor pieces 14L at the inner ends thereof. c

The lever 6 is preferably constructed of wood, the other parts of theapparatus being made of suitable metal, but a metallic lever may beemployed if desired. The front engaging end of the lever is providedwith a recess 21 to enable it to fit around the tubular shield, and itis reinforced by a metallic plate or piece 22, secured by bolts 23 tothe lever. The bolts also fasten a bottom plate 2i to the lower face ofthe operating lever. The bottom plate 24 is provided with a plurality ofintegral depending ears 25, adapted to receive a pivot bolt 26 forconnecting the lever to spaced sides 27 of a bracket 28, mounted on ablock 29 and forming a fulcrum of the lever. The block 29 is preferablyconstructed of wood, and the bracket 28 is provided with a dependingshank 30 embedded 'in the block, shown. The fulcrum is shiftable oradjustable along the lever to vary therel'ative lengths of the armsthereof to enable the lever to exert great power in withdrawing a pumppipe and also to be arranged for increasing the stroke of the lever andlifting the pipe when great leverage is not required for pulling thesame from the ground.

In applying the apparatus toa pump pipe, the earth is dug from aroundthe pipe to permit the tubular shield to be placed thereon. In pulling apump pipe out of the ground, .the lever is operated to engage thecatches with the top set of lugs, and the pipe is pulled the distance ofone stroke of the lever. The catches are then engaged with the nextsetof lugs, and the pulling operation is repeated 'until the pipe has beenlifted the length of the tubular shield. If this is insuflicient to liftone of the sections of the pump pipe clear of the ground, an extensionsection 31 is connected to the upper end of the shield 1 and to the cap9, and the device is again operated to pull the pipe. The exte nsiensection 31 is threaded at is upper end 32 to screw into the cap, and itis equipped at its lower end with a coupling 33 to screw on the upperend of the shield. As the ex tension tube 31 is applied to the upper endof the shield 1, the latter remains in position to co-act with theoperating lever and consequent-1y it is unnecessary to equip theextension tube with the lugs 3.

While only one tubular extension section is shown in the drawing, inpractice the device will be equipped with sections of different lengthsto enable it to be arranged to suit the length of the sections of thepump pipe operated on.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. A device for pulling pump pipes including a tubular shield providedat intervals with lugs, means for detachably con-- necting the tubularshield to a pump pipe, a cross head movable along the tubular shield andprovided with means for engaging the lugs thereof, and an operatinglever for lifting the cross head.

2. A device for pulling pump pipes including a tubular shield adapted tobe placed on a pump pipe and provided at opposite sides with lugsarrangedat intervals, means for detachably securing the shield to a pumppipe, a cross head having an opening to receive the shield and movablealong the same, catches mounted on the cross head at opposite sides ofthe shield and arranged to engage the lugs, and an operating leverprovided with means for supporting the cross head at opposite sides ofthe shield and adapted to be oscillated to lift the cross head.

3. A device for pulling pump pipes including a tubular shield adapted tobe placed on a pump' pipe, a cap provided with threads for engaging t eupper end of the pump pipe and having means for detachably engaging theupper end of the shield, a cross head slidable on the shield, meanscarried by the cross head for engaging the shield, and an operatinglever engaged with and adapted to lift the cross head.

4. A device for pulling pump pipes including a tubular shield having athreaded upper end, a cap provided with a socket and having interiorthreads to screw on a pum pipe and on the shield, a tubular extensionsection having a threaded upper end and provided at its lower end with acoupling and adapted to form a co tinuation of the tubular shield, alever, and means car-- ried b the lever for engaging the shield.

A device for pulling pump pipes including a tubular shield provided witha longitudinal groove, means for securing the shield to a pump pipe, across head movable along the shield and provided with a clamping screwoperating in the groove and adapted to engage the shield, means carriedby the cross head for engaging the shield to lift the same, and a leverhaving means for engaging the cross head at opposite sides thereof.

6. A device for ullin um i es including a tubularshielc l adagte d to beplaced on a pump pipe and provided with opposite lugs, means fordetachably securing the shield to a pump pipe, a cross head composed ofspaced bars, and blocks secured between the terminal portions of thebars and provided with seats, the intermediate portions of the barsforming an opening to receive the tubular shield, spring actuatedcatches pivotally mounted at the seats and arranged to engage the lugsof the shield, and a lever provided with means for engaging the crosshead at opposite sides of the shield.

7. A device for pulling pump pipes including a shield adapted to bearranged on a pump pipe, means for securing the shield to a pump pipe, across head movable on the shield and provided with means for engagingthe same, a lever having a forked portion to straddle the shield andengage the cross heads at opposite sides thereof, a forked metallicplate secured to the upper face of the lever, and means secured to thelower face of the lever for fulcruming the same.

8. A device for pulling pump pipes ineluding a tubular shield, a crosshead movable along the shield and having means for engaging the same,means for securing the shield to a pump pipe, a lever for lifting thecross head, a plate secured to the lower face of the lever and providedwith a plurality of cars, and an adjustable fulcrum comprising a block,a bracket having spaced sides to receive the ears of the lever andprovided with a shank embedded in the block, and a pivot detachablysecuring one of the ears of the lever between the sides of the bracket.

In testimony, that I claim the foregoing as my own, I have heretoafl'ixed my signature in the presence of two Witnesses.

PHILIP C. EMANUEL. Witnesses: I

JOHN H. Sreenns, DAVID R. WAGNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

